July 1 (Reuters) - BlockFi has signed an agreement with Sam Bankman-Fried's FTX under which the cryptocurrency exchange will have the option to acquire the crypto lender for up to $240 million, BlockFi CEO Zac Prince said in a tweet on Friday.

BlockFi has also signed a $400 million revolving credit facility, Prince added. (Reporting by Niket Nishant in Bengaluru; Editing by Aditya Soni)